sudo: false
language: ruby
rvm:
  - 2.3.7
  - 2.4.4
  - 2.5.1
  - ruby-head
script: rake test
matrix:
  include:
    - rvm: jruby-9.1.17.0
      env:
        - "JRUBY_OPTS='-J-Xmx1024M -X+O'"